A Study on Optical Absorption Spectra of Photochromic Dye Using Mixed-Level Factorial Design

Nadir, Najiah and Wahid, Zaharah (2014) A Study on Optical Absorption Spectra of Photochromic Dye Using Mixed-Level Factorial Design. In: International Conference on Mathematical Applications in Engineering (ICMAE 2014), 23-25 September 2014, Sunway Putra Hotel, Kuala Lumpur. (Unpublished)

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Abstract

The photochemical transformation of the organic photochromic dyes is influenced by many independent factors. One of the most important characteristics of the photochromic dyes that need to be focused on is its photostability. The effects of the type of dyes and solvents on the optical absorption spectra and fading rate constant stability have been investigated by using mixed-level factorial design. The behaviour of these dyes was observed before and after ultraviolet irradiation. From the analysis of variance results, both the type of dyes and solvents used gave significant effect on the absorbance and stability. Naphthopyran compound displayed highest change in absorbance intensity, followed by spiropyran and spirooxazine. However, spirooxazine is the most stable dye compared to naphthopyran and spiropyran.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	6526/40264
Subjects:	T Technology > T Technology (General) > T55.4 Industrial engineering.Management engineering. > T57 Applied mathematics. Quantitative methods. Operation research. System analysis T Technology > TA Engineering (General). Civil engineering (General) > TA329 Engineering mathematics. Engineering analysis T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK452 Electric apparatus and materials. Electric circuits. Electric networks
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Science
Depositing User:	Dr. zaharah Wahid
Date Deposited:	13 Feb 2015 11:03
Last Modified:	13 Feb 2015 11:03
URI:	http://irep.iium.edu.my/id/eprint/40264

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